def get(self,
path,
version=None,
internal=False,
python_dict=False,
regex_flag=False):
'''
CRUD read operation
'''
url = self._urlencode(path2url(path),
txid=self.txid,
version=version,
tega_id=self.tega_id,
internal=internal,
regex_flag=str(regex_flag))
response, body = self.conn.request(url, GET, None, HEADERS)
if response.status >= 300 or response.status < 200:
raise CRUDException(response=response)
dict_data = json.loads(body.decode('utf-8'))
if python_dict:
return dict_data # Returns Dict
else:
if regex_flag:
return [dict2cont(elm) for elm in dict_data]
return subtree(path, dict_data) # Returns Cont
def reload_log():
'''
Reloads log to reorganize a tree in idb
'''
PUT = OPE.PUT
DELETE = OPE.PUT
SS = OPE.SS
t = None
multi = []
_log_fd.seek(0)
for line in _log_fd:
line = line.rstrip('\n')
if line.startswith(ROLLBACK_MARKER):
args = line.split(' ')
rollback(args[1], args[2], int(args[0]), write_log=False)
elif line.startswith(COMMIT_FINISH_MARKER) and len(multi) > 0:
timestamp = _timestamp(line)
t = tx()
put = t.put
delete = t.delete
for crud in multi:
ope = crud[0]
if ope == PUT:
instance = crud[1]
tega_id = crud[2]
put(instance, tega_id=tega_id, deepcopy=False)
elif ope == DELETE:
path = crud[1]
tega_id = crud[2]
delete(path, tega_id=tega_id)
t.commit(write_log=False)
del multi[:]
elif line.startswith(COMMIT_FINISH_MARKER):
pass
elif line.startswith(COMMIT_START_MARKER) or line.startswith(
SYNC_CONFIRMED_MARKER):
pass
else:
log = eval(line)
ope = log['ope']
path = log['path']
instance = log['instance']
tega_id = log['tega_id']
if ope == PUT.name:
if path:
root = subtree(path, instance)
else:
root = dict2cont(instance)
multi.append((PUT, root, tega_id))
elif ope == DELETE.name:
multi.append((DELETE, path, tega_id))
elif ope == SS.name:
root_oid = instance['_oid']
root = deserialize(instance)
_idb[root_oid] = root
def reload_log():
'''
Reloads log to reorganize a tree in idb
'''
PUT = OPE.PUT
DELETE = OPE.PUT
SS = OPE.SS
t = None
multi = []
_log_fd.seek(0)
for line in _log_fd:
line = line.rstrip('\n')
if line.startswith(ROLLBACK_MARKER):
args = line.split(' ')
rollback(args[1], args[2], int(args[0]), write_log=False)
elif line.startswith(COMMIT_FINISH_MARKER) and len(multi) > 0:
timestamp = _timestamp(line)
t = tx()
put = t.put
delete = t.delete
for crud in multi:
ope = crud[0]
if ope == PUT:
instance = crud[1]
tega_id = crud[2]
put(instance, tega_id=tega_id, deepcopy=False)
elif ope == DELETE:
path = crud[1]
tega_id = crud[2]
delete(path, tega_id=tega_id)
t.commit(write_log=False)
del multi[:]
elif line.startswith(COMMIT_FINISH_MARKER):
pass
elif line.startswith(COMMIT_START_MARKER) or line.startswith(SYNC_CONFIRMED_MARKER):
pass
else:
log = eval(line)
ope = log['ope']
path = log['path']
instance = log['instance']
tega_id = log['tega_id']
if ope == PUT.name:
if path:
root = subtree(path, instance)
else:
root = dict2cont(instance)
multi.append((PUT, root, tega_id))
elif ope == DELETE.name:
multi.append((DELETE, path, tega_id))
elif ope == SS.name:
root_oid = instance['_oid']
root = deserialize(instance)
_idb[root_oid] = root
def cand(self, internal=False, python_dict=False):
'''
Candidate config.
'''
if self.txid:
url = self._cmdencode('cand', txid=self.txid, internal=internal)
response, body = self.conn.request(url, POST, None, HEADERS)
status = response.status
json_data = body.decode('utf-8')
if python_dict:
return json.loads(json_data)
else:
return dict2cont(json_data)
else:
raise TransactionException(message='no ongoing transaction')
def cand(self, internal=False, python_dict=False):
'''
Candidate config.
'''
if self.txid:
url = self._cmdencode('cand', txid=self.txid, internal=internal)
response, body = self.conn.request(url, POST, None, HEADERS)
status = response.status
json_data = body.decode('utf-8')
if python_dict:
return json.loads(json_data)
else:
return dict2cont(json_data)
else:
raise TransactionException(message='no ongoing transaction')
def _render(self, filename):
'''
NLAN state registartion with tega db
'''
with open(os.path.join(self.etcdir, filename)) as f:
temp = f.read()
with self.tx() as t:
routers = self.get(IP_PATH)
r = {k: v.split('/')[0] for k, v in routers.items()}
state_yaml = mako.template.Template(temp).render(**r)
state = yaml.load(state_yaml)
config = {CONFIG_PATH.format(r): v for r, v in state.items()}
for root_oid, c in config.items():
t.put(dict2cont({root_oid: c}))
def _render(self, filename):
'''
NLAN state registartion with tega db
'''
with open(os.path.join(self.etcdir, filename)) as f:
temp = f.read()
with self.tx() as t:
routers = self.get(IP_PATH)
r = {k: v.split('/')[0] for k, v in routers.items()}
state_yaml = mako.template.Template(temp).render(**r)
state = yaml.load(state_yaml)
config = {CONFIG_PATH.format(r): v for r, v in state.items()}
for root_oid, c in config.items():
t.put(dict2cont({root_oid: c}))
def get(self, path, version=None, internal=False, python_dict=False,
regex_flag=False):
'''
CRUD read operation
'''
url = self._urlencode(path2url(path), txid=self.txid,
version=version, tega_id=self.tega_id,
internal=internal, regex_flag=str(regex_flag))
response, body = self.conn.request(url, GET, None, HEADERS)
if response.status >= 300 or response.status < 200:
raise CRUDException(response=response)
dict_data = json.loads(body.decode('utf-8'))
if python_dict:
return dict_data # Returns Dict
else:
if regex_flag:
return [dict2cont(elm) for elm in dict_data]
return subtree(path, dict_data) # Returns Cont